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The Effect of Spray Wall Impingement Angle on Smoke Emission in a HD DI Diesel Engine
Published May 21, 2008 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Spring Meeting
Generally, smoke emission is affected by the combination of the combustion chamber shape and the fuel injection nozzle specifications in DI diesel engines. In this study, the effects of this combination on smoke emission were investigated. Single-cylinder engine tests and 3-D numerical analysis were carried out to investigate the effect of fuel spray wall impingement angle on smoke emission. The results indicated that the wall impingement angle leads the change of combustion region in the cylinder. Consequently, optimized wall impingement angle enhances the utilization of charged air.